not sure if I’m overthinking or what?

hi mommies I’m currently 17 weeks and I can’t feel my baby at all. Usually I so feel little movements and all but now I completely don’t feel anything. And I noticed I always wake up lying on my back , and I’m always sleeping so late because of insomnia and I feel so guilty. My next appointment is on 15th April🥲 still a long way to go. What should I do or how do I make baby move more!!!